Spectrum Lab and Quantum Study Guide Answers

Today we completed the Spectrum Lab. If you missed it, you can either make it up at school or use the internet to figure out the two mystery elements. The elements we looked at were neon, hydrogen, mercury, nitrogen, oxygen, and helium.

You also had more time to work on your study guide; the answers are below. Sorry these are so dark; my photo editing app just keeps crashing.

Quantum Study Guide!

Time for a study guide! Half of the block period this week will be spent in lab and half on study guide work time, with your test on Thursday.

Conceptual Quantum Study Guide
Honors Quantum Study Guide

Spectra

Today we talked about identifying elements by their spectra.

We had some short notes and another practice problem like bellwork: Spectra of Elements. Your homework is Quantum IV.

Emission and Absorption of Photons

Bellwork and notes both went on the board today. Sorry the picture is so dark - my editing app just kept crashing and I gave up.

If you missed the lecture, these sites do a pretty good job of explaining:

 Regents Prep - Bohr Model

McGraw-Hill - Play with Absorption/Emission
University of Toronto - Another Animation of Bohr Model

Homework is Quantum III.

Discrete Energy Levels

Remember, the Bohr Model is not technically correct, but it helps us explain why only certain energy levels are allowed.

Here is a nice animation of the electron standing waves around the nucleus from the University of Toronto.

Homework: Quantum II.  Note that the wavelength of electrons for does change with the energy level - the speed changes, which affects the deBroglie wavelength.  But in #3 and #4 on the homework, we're going to simplify things a bit and assume the electron wavelength is the same for all energy levels.

Particles as Waves

We meandered a bit because it's AIMS day and I'm fried from walking for 3.5 hours in a silent room...but today we talked about particles acting like waves. Below are some notes from a few years ago that are more detailed than the ones we took on bellwork.

Homework tonight is deBroglie Wavelength.

Measurement Error Lab

Today we are worked on a lab that is sort of tied to the uncertainty of measurement that occurs in quantum mechanics.

Measurement Error Lab

Have a great Rodeo Break. Remember that AIMS is on Monday and Tuesday, so if you've already passed Reading and Writing you don't have to come in until 10: 30 (lunch) and class starts at 11:30. buses pick up 3.5 hours later than usual. If you're taking AIMS, get to school at the regular time.

Practice: Quantum I

I want to solidify what we already know before we get into the really weird quantum mechanics stuff, so today you just completed Quantum I for practice.

Quantum I Conceptual (period 1)
Quantum I Honors (periods 4,5,6)

The Photoelectric Effect

Today we talked about the photoelectric effect. Bellwork:

Here is a simulation we looked at. Honors classes also had a reading and a homework that goes with it. Period 1 can do those for extra credit if they wish.

Quanta and Photons

Bellwork:

Notes: Quanta and Photons

Homework: Photons

Test: Quantum

Many of you have missed several days this week due to AIMS makeup testing. I will allow those students to take their test Monday after school. Everyone else, don't forget your note card and calculator today!

Study Guide: Quantum

Spectra Lab

Today we did the Spectra Lab.  If you were not here, I will simply excuse you for it.  If you want to make it up, you may do so after school.  Alone, it will probably take you 20-30 minutes.

Spectra

Conceptual bellwork:









Honors bellwork:






Notes Below. There is a nice page with the spectra of each element here. Homework is Quantum IV (Conceptual, Honors)

Photon Emission and Absorption

Bellwork:






Notes...which don't make a whole lot of sense if you weren't there...










Here are some websites that explain:
Regents Prep - Bohr Model
McGraw-Hill - Play with Absorption/Emission
University of Toronto - Another Animation of Bohr Model

Homework: Quantum III (conceptual) or Quantum III (honors). 

Discrete Energy Levels

Remember, the Bohr Model is not technically correct, but it helps us explain why only certain energy levels are allowed.

Here is a nice animation of the electron standing waves around the nucleus from the University of Toronto.

Homework: Quantum II.  Note that the wavelength of electrons for does change with the energy level - the speed changes, which affects the deBroglie wavelength.  But in #3 and #4 on the homework, we're going to simplify things a bit and assume the electron wavelength is the same for all energy levels.

Particles As Waves

No homework tonight.

Practice: Quantum I

I figured you all probably forgot a lot over the long weekend, so we spent today practicing what we already know. Tomorrow we will move on to new stuff.

Conceptual: Quantum I
Honors: Quantum I

These are due tomorrow.

Photoelectric Effect

Today, a very quick discussion of the photoelectric effect. Honors did this yesterday and receives a more in-depth reading on the photoelectric effect today. Homework for Conceptual is Energy of Photons and for Honors is Photoelectric Effect.

Quantum and Photon

No homework for Conceptual. Homework for Honors is Energy of Photons.